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