You need to survive from being in the water on the Buoy stage
Jump into the water
Climb back up by holding the ice with LB + RB
Then keep jumping (A) until you're back up
This is my full 100% Achievement Walkthrough, all solo methods
You only need an extra controller for the football achievement
I also teach you how to play
Timestamps:Achievements: 00:35
Customize: 2:00
How to play: 2:50
Short Wave: 4:10
Drop Kick: 4:55
Big Head: 4:55
Roast Beef: 6:15
Safety Warning: 7:35
Sea Legs: 8:00Buoy o Buoy: 8:00
In Transit: 9:30
Keep on Trucking: 9:30
Long Haul: 9:30
Bucket List: 11:10
Self Storage: 11:45
Special Delivery: 11:45
Ground Floor: 13:20
Hang Tough: 15:15
Step Down: 16:30
Sit Down: 17:35
Shutout: 18:30
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