The decisions that aren’t listed here doesn’t matters to get those endings.
There more than one way to get a ending, this guide explain only one of them.

When Chihuahua ask for help:
Help Chihuahua

Second day:
I can't sit back and do nothing. I have to see what Driller’s up to.
We’ll show him another virtue of human beings.

Introduce yourself and offer your hand.
Did you also come to Earth to exterminate us?
Humanity has the right to testify.
You should have told me.
But if it comes to that, it only will be as a last resort.
It might be crazy, but I feel the same.

First day:
Stick to the plan.
Because you’ve already judged us.

Second day:
You look very attractive.
Stellar Battle
No, Smash, no one should force their will upon others.
Screw Driller. I have to focus on Smash.
Don't you know how to dance, Commander Smash?
Grab him again.
Perhaps it’s time to attack with all the artillery.
Smash is better than his brother.
Tell him the truth.

Third day:
Alert Crush to try to stop it together.
It seems that Crush is not the caring and understanding person I thought he was.
Kiss him.

First day:
Stick to the plan.
Because you’re doing all of this just to annoy Crush.


Second day:
The toys one.
What makes a brother unforgivable?
Screw Driller. I have to focus on Smash.
Okay. We better get a drink.
My God, Smash, he's your brother and also the person I love.
I’ll get you and your brother to make up.

ACHIEVEMENT- You have cheated... and you know it

We should train.
Introduce yourself and offer your hand.
Have you been protecting us all this time?
Humanity has the right to testify.
You should have told me.
But if it comes to that, it only will be as a last resort.
It might be crazy, but I feel the same.

First day:
Stick to the plan.
Because you’re doing all of this just to annoy Crush.
Then don’t play with the lives of an entire species.

Second day:
You look very attractive.
The toys one.
What makes a brother unforgivable?
Screw Driller. I have to focus on Smash.
Okay. We better get a drink.
Okay, no talking about Crush.
Leave him.
I'm going to challenge your brother.

Third day:
Win the minigame

I want to treat the two little brothers to some ♥♥♥♥ syrup.

ACHIEVEMENT- You have cheated... and you know it

We should train.
Introduce yourself and offer your hand.
Have you been protecting us all this time?
Humanity has the right to testify.
You should have told me.
But if it comes to that, it only will be as a last resort.
It might be crazy, but I feel the same.

First day:
Stick to the plan.
Because you’re doing all of this just to annoy Crush.
Then don’t play with the lives of an entire species.

Second day:
You look very attractive.
The toys one.
What makes a brother unforgivable?
Screw Driller. I have to focus on Smash.
Okay. We better get a drink.
Okay, no talking about Crush.
Leave him.
I'm going to challenge your brother.

Third day:
Win the minigame
I feel like having my ♥♥♥♥♥♥♥ torn up.

First day:
Stick to the plan.

Second day:
Screw Driller. I have to focus on Smash.
Okay. We better get a drink.
Okay, no talking about Crush.
Leave him.
I'm going to challenge your brother.

Third day:
Depending on your decisions Smash can reject the challenge, if not you have to lose the minigame.

Introduce yourself and offer your hand.
Did you also come to Earth to exterminate us?
Humanity has the right to testify.
How many species had you annihilated before arriving to Earth?
But no, I won’t resort to that under any circumstances.
I get it, but we can’t be distracted.

First day:
Stick to the plan.
Because you’ve already judged us.

Second day:
You look very attractive.
Stellar Battle
No, Smash, no one should force their will upon others.
Screw Driller. I have to focus on Smash.
Don't you know how to dance, Commander Smash?
Grab him again.
Perhaps it’s time to attack with all the artillery.
Tell him the truth.

Third day:
Find Smash and prevent him from doing so.
It seems that Crush is not the caring and understanding person I thought he was.
I will help you, that's why I am your friend.

ACHIEVEMENT- Superboyfriend to the rescue

Introduce yourself and offer your hand.
Did you also come to Earth to exterminate us?
Humanity has the right to testify.
You should have told me.
But no, I won’t resort to that under any circumstances.
It might be crazy, but I feel the same.

First day:
Stick to the plan.
Because you’ve already judged us.

Second day:
You look very attractive.
Stellar Battle
No, Smash, no one should force their will upon others.
Screw Driller. I have to focus on Smash.
Don't you know how to dance, Commander Smash?
Grab him again.
Perhaps it’s time to attack with all the artillery.
Smash is not as good as his brother.
Tell him the truth.

Third day:
Alert Crush to try to stop it together.
I am sure Crush is innocent. There must be another explanation.