Trying to get that achievement, anyone have a like a hint or something on what needs to be done to get it?

I have 85 collectibles out of 86, and I don't know what I'm missing. The little Tab button that usually shows up is not available, and I don't know what I'm missing. Can anyone help?

The title says it all, the game/dialogue makes little to no sense to someone who only speaks English. This is a place for English speakers to compile all the errors to be fixed and improve the game for others hopefully.

那个白痴的小游戏是谁想出来的？ 至少说明一下玩法吧？Ghost的小游戏我一直都玩不赢

So what do I need to do to beat the first boss? I tried about 6-7 or so times and only once I managed to get him down half health, which I think was sheer luck on his behavior. All the other times, he has his oil-fire trail protecting him where my zombies gets picked off, he finds his way into a 1 way in/out door building/house or he zips all over the place pushing/making my zombies fly. I tried some ranged attack zombies but the boss' range with his rifle/gun has a longer range than what I got and they di...