5-4 // LEVIATHAN (Any%)

Ultraboost

Slam Store in the red room hallway
Dive, then slam
UB up
Checkpoint as you reach the surface

Boss Kill

Standard Kill Spit

Dash Jump
Place a saw trap with 10 blue saws and an overheat saw
Right before Leviathan spawns, slam to break your magnet and fire a new one right before landing
Projectile Boost Leviathan 3 times, Shotgun Swapping each time
Slam jump and throw 4 coins up then Slab Coin
Continue firing projectile boosts until it attacks
If it does the spit attack use sharpshooter alt fire to destroy a projectile then malicious rail its mouth

Standard Kill Lunge

Dash Jump
Place a saw trap with 10 blue saws and an overheat saw
Right before Leviathan spawns, slam to break your magnet and fire a new one right before landing
Projectile Boost Leviathan 3 times, Shotgun Swapping each time
Slam jump and throw 4 coins up then Slab Coin
Continue firing projectile boosts until it attacks
If it does the lunge attack, slam jump so you land on top of leviathan, jumpstart it, fire a magnet and saws until jumpstart procs, then electric rail its weakpoint

Len Kill