Complete Final Mission with no continue

Ride all the Slugs

Complete Mission 4 with no continue

Clear Mission 2 as a zombie

Reach the icy cave's exit with the Elephant Slug

Complete Mission 1 with no continue

Defeat TAKUMA TAKAGASHI without letting him heal himself.

Break all toilet doors.

Defeat SEWERJUNK without using the flamethrower.

Finish the game using no potty.

Destroy General X's robo-tank without using electromagnetic grenades.

Kill X Human-Piranha-hybrid things with the shredders.

Complete the part "Jericho's heart".