Here is the full list of all 12 Shutshimi achievements.
Amass a total of 53594 kills...give or take 52594.
Complete Boss Rush mode. Talk about deja vu!
Defeat the final terror of the sea. No bigger fish to fry!
Acquire over 9000 points in a single game. But try not to break anything.
Acquire the hero's cape. Finally, some clothing!
Clear a bouncy castle round by bouncing off the floor fewer than 6 times. You should play Bassketball!
Survive 10 waves with a score of 0. Nothing like a game of Invasion Golf!
Wear 3 hats in a single game. That's called a Hat Trick!
With the lipstick equipped, smooch a shark. I'm just after the achievement - it's not like I like you or anything!
Clear 10 shop rounts within 2 seconds each in a single game. Don't look, just pick!
What a horrible night to have a sweet pair of sunglasses.
Clear 10 consecutive waves wearing the Foam Dome. Now you're drinkin' like a fish!