

Kick your friend 50 times during a single level After fifty kicks, you will unlock your first co-op achievement. By kicking them against the blue door, Niku will not move, so you do not have to wait between kicks. You will need to kick Niku fifty times to unlock the next achievement. Move Piku so that they are next to Niku, and start kicking. To start with, drop both characters into the middle of the starting room, moving Niku against the blue door.

You can quickly kick them over and over again, until you reach fifty and unlock your first co-op achievement. Instead of being pushed back (or upwards, if you were otherwise kicking Niku against a regular wall), they will bounce against the blue bridge and stay roughly in the same position. This achievement is pretty self-explanatory but if you push Niku against the blue bridge before completing it, it will go a lot faster. You are immediately going to get ' You're not helping' out of the way, by kicking Niku fifty times. Jump both characters down into the middle of the starting room.
