Rocket Riot

Shoot 20 enemies within a 60-second window - pick a busy, enemy-dense level and blast away without pause.

Beat the first boss of the Pirate theme - progress the Pirate levels to its boss and take it down.

Land 50 longshots (kills from a long distance) in total - cumulative, so keep picking off far-away enemies.

Use every power-up in the game at least once - grab and fire each type as you find them across levels.

Complete a "Destroy the Object" level without killing a single enemy - beeline the objective and avoid every kill.

Shoot at least one of every enemy type - happens naturally as you play all the themes, or hunt down any you've missed.

Reach the final boss and lose to it - just let the final boss beat you once. A deliberate failure.

Shoot 50 each of zombies, robots, pirates and soldiers - work through all four themes killing 50 of each type.

Kill three enemies with a single shot - line up three foes (or catch a tight cluster) and hit them with one rocket.

Finish the single-player campaign - see the main story mode through to the end. The base completion.

Destroy 1,000,000 destructible blocks in total, counted across every level - a long cumulative grind that ticks up as you blast scenery. (Duplicate of One Meeellion Blocks.)

Shoot 5,000 enemies in total across all your play - a steady cumulative grind.

Destroy 1,000,000 blocks in total (all levels counted) - the same million-block milestone as One Meeeeeelion Blocks!, a duplicate row.

Clear every enemy in a level while inside the zeppelin - get into the airship and use it to wipe out the whole level's foes.

Beat the final boss of the Dream World pack (DLC) - work through that pack to its boss and defeat it.

Make a giant Strongman miniboss chase you for 20 seconds straight - lure it and keep just out of reach without killing it.

Share a screenshot at the end of a Rugby Riot level - finish a Rugby Riot stage and use the share option on the results screen.

Defeat the Spartacus boss while you're also playing as Spartacus - unlock/select the Spartacus character, then beat him.

Punch a horse until it explodes - find a horse in a level and melee it repeatedly.

Win a deathmatch level by letting your banana-bros (AI helpers) defeat all the enemies - hang back and let your allies do the work.

Shoot 12 bouncy rockets into the Roman encampment - in the relevant level, bank a dozen bouncing shots into the enemy camp.

Have every single pixel in an Arts & Crafts pack level destroyed at the same moment - level the entire arena so nothing is left standing.

Finish every level in the Arts & Crafts pack playing as Derpfish - select the Derpfish character and clear the whole pack with it.

Defeat 1,000 donuts in the Dream World pack - a cumulative grind against the donut enemies in that pack.

Complete the relevant level without destroying any ketchup - a "leave the object intact" challenge; avoid hitting the ketchup entirely.