Here is the full list of all 13 Panic Porcupine achievements.
Complete the first level.
Go around a loop.
Reach maximum speed.
Get an egg medal.
Die 500 times.
Collect 1000 Eggs.
Pass zig-zag bumpers in Cirque du Ricochet without touching one.
Beat the final boss.
Beat the first world.
Complete the game 100%
Beat Saw Speedway in under 20 seconds.
Beat level without landing on bone platform.
Launch over saws in buzzsaw blast.