Crypt
Room 5 - Undetected

Darkest Pits
Room 4 - Mercy
Room 5 - Annihilation 1

Electric Lab
Room 3 - Keel Hauled

Engine of Insanity
Room 3 - Goat Squeeze
Room 4 - Annihilation 2

Frozen Cavern
Room 4 - Laziness
Room 5 - Alternate Path

Limestone Quarry
Room 1 - Precision Timing

Lost City
Room 5 - Clean Annihilation

Red Clay
Room 1 - Smooth

The Final Path
Room 1 - Cheese
Room 9 - Daredevil
Room 10 - Conqueror (complete every level in every area)
Room 10 - Savior (upon finishing the final level)
Room 10 - Speed Runner (upon finishing the game in under 45 minutes)

Forget the switches near the start and make your way over to the platform on the right.



Jump-dash-jump your way up on to the platform beside the yellow switch and the Magic Hat.



Throw your mouse over toward the key and teleport switch with it to collect it, then quickly again to avoid the spinning blades. Make your way to the exit to unlock the achievement.

This is a simple one. The switches on the bottom will raise or lower a block which creates a bridge that the spinning blades can travel along.



If you break one of the spinning blades by making them collide you will need to restart the level as both blades are needed to take out each and every reaper.



Stand on the proper switch and bridge the spinning blades to each platform, taking out the reapers as you go.



When you bridge the blade to the top platform it will drop a heavy block which will drop the blade as well, allowing you to get the reapers on the other side.



And once the block has dropped, you can start sending up the other saw blade to get the reaper on the top-most platform.



It's quite simple to kill all the reapers. Now collect the keys while avoiding the blades and head out the door to unlock the achievement.

Another simple achievement, more time consuming than anything. Upon entering the room, immediately grab the Magic Hat to your right. Send your mouse companion along the floor and teleport when he is near the key. This will destroy any reapers between the two of you. Repeat until all reapers in the middle section are defeated.



Collect the keys and repeat the process for the reapers in the left alcove.



When all the reapers are dead and the keys are collected you can leave and collect your achievement.

This one is an easy one. Dash immediately right to avoid hitting the switch overhead. Then jump, fall, dash, jump over to the exit. It will require timing and practice but it can be done.

Wait for the steel gates on the left to close and jump to the top middle block.



Again, wait for the steel gates to close and jump up to ledge directly above.



Wait again for the gate to close, then jump and hit the yellow switch overhead. This will destroy the reapers to the left.



Stand on the left-most block to the left of the top reaper seen here, and send your mouse out to draw the reaper's fire. When only one block remains, use the clear space to throw your mouse down to the reaper below. With luck, it will attack the mouse to the right and destroy the blocks. Finish the level to unlock the achievement.

Complete every level in the game to earn this achievement. There's no trick to it, just do it.

Stand on the box above the skull switch like normal.



Fall down, hit the switch and land on the plaform.



Stand here and wait for the reaper to reach the very right of its platform then when it turns around jump up to it and grab the Magic Hat.



Drop off the platform to the right and jump over to the blocks with the key inside.



Place your sleeping mouse on the middle block and drop off one edge and teleport switch as you reach the bottom. This will drop the blocks away and make the key accessible.



Repeat on the other side.



Drop down and dash through the opening to collect the key and either jump or teleport back on to the safety of the platform.



Send your mouse scurrying up the wall to the left to reach the top again. When the reaper is facing away, jump up to the platform and jump up to the exit, remembering to hold up to go through the exit and unlock the achievement.

Stand on the lower wooden block to your left. Dash off this block and double jump up through the gaps in the moving blocks. Use the expertly crafted image below for a better understanding.



It will take practice and timing and perhaps some luck. You will probably make it through the gap but get crushed by the block you're trying to beat, that's normal so just keep trying, and remember to get through the exit and unlock the achievement before the stone hits the floor.

Drop down to the platform below.



Fall down the gap and jump-dash-jump your way over to the platform to the right.



Send your mouse running around the platform until it hits the yellow switch underneath. This will let you drop down to hit the switch on the bottom floor yourself.



Finish the level with the newly opened path and unlock the achievement.

This is an easy one. Bash the two ice blocks away and forget about them. Use one of the single blocks and knock it over to the switches on the left. Place your sleeping mouse on top of the block.



Then jump up and you should be able to activate both switches at the same time simply by jumping at both of them. The exit is available and you can now unlock the achievement.

Place your mouse on the bottom switch and stand on the top switch to allow the Reaper to pass upward and on to the yellow switch over head.



You can safely stand on the red block without falling or being attacked by reapers. Stay here until the bottom reaper is facing away from you.



Drop down and run to the exit. Double jump over the yellow switch to avoid activating it.



This will avoid crushing and killing the reaper and earn you the achievement.

Jump across the top of these blocks to the left. When safe, drop down and collect the magic hat. Then drop down again and make it safely in to the bottom left corner, making sure to avoid the skull switch.



Send your mouse along the floor toward the key. Quickly teleport switch with the mouse twice, once to get the key and again to get out of the way of the spinning blades.



Send your mouse along the floor again, this time let him get to the bottom right corner. Switch teleport with him again.



Then send the mouse up the wall and toward the exit and teleport again to safety and unlock the achievement.

Finish the game to earn this achievement.

Throw your mouse on to the roof to draw the fire from the reaper as normal. When you're free get down on to the floor. Jump in to the air and dash in to the boxes to destroy them with a headbutt.



Step on the switch and the key will fall to the floor.



Grab it and go through the exit to unlock the achievement without touching the skull switch and unlock the achievement.

Finish the game in less than 45 minutes. You don't need to finish 100% of the game, you just need to get to the end credits as soon as possible.

A good way to do this is finish the game first and have a file that is 100% completed then start a new file and get to the Gathering Place quickly and save.

Pick the next set of levels you're going to complete and practice doing them quickly in your 100% completed file. Once you're comfortable with your speed, start your speed run save file and complete the levels as quickly as possible, saving again in the Gathering Place.

Repeat this until you've finished the game in under 45 minutes and earned the achievement.

Place your pet mouse on the switch to stop the gargoyles from firing at you and drop down.



Jump over the skull switches and stand on the top right gargoyle. Dash off the gargoyle and double jump on to the bone block and up to the treasure.



Grab the treasure and jump down to the green overhanging block. Drop down and jump and dash back on to the bone blocks and back up to the gate.



Throw your mouse down to the bottom floor and teleport to switch places with it when it's inside the skull switches to grab the key.



Teleport back up to the top and set your mouse running again until it is underneath you and teleport switch. This will destroy the blocks and drop the key.



Teleport switch again to get back up to the gate and complete the achievement.