Here is the full list of all 25 Unspottable achievements.
Use the teleporter 10 times.
Win a game without any opponents scoring any points.
Punch a player out of the game area.
Bully someone 10 times in start scene.
Punch all bots in start scene.
2 players were punched in 2 seconds.
3 players were punched in 2 seconds.
Complete a 1 point game.
Complete a 99 points game.
Unlock all characters.
Draw a game.
Complete the tuto.
Punch the spectator in Meadow.
Finish a game with no robots left in Arena.
All players get punched by robots.
Leave the restaurant during your distract.
All the players got punched as they were about to leave.
All players have been crushed.
All players have been punched when the lights were off.
Turn off the light 10 times in a game.
Punch an opponent under a spotlight.
All bots killed by bombs.
All players killed by bombs.
Punch the instructor 3 times in the same game.
All players punched by instructor.