Ratchet & Clank: All 4 One achievements

Use the Co-op overload to kill 60 enemies.

Kill 50 enemies with the Vac-U 4000.

Play an online game.

Kill 500 enemies.

Don't let the air taxi take damage in Luminopolis.

Fully upgrade one weapon.

Buy half of the weapons.

Reach the lobby.

Play an offline-only game. (2P +)

Kill eight enemies in two seconds.

Play a single-player game.

Buy your first weapon.