Jack flips over the top of the monster and is ready to slash at it, right at the sweet spot, at the obvious weak point, when he gets a faceful of slime.

He yells and goes down, skidding forwards in an awkward butt-first position. He has a nasty feeling he's flying underneath the damn monster on its long, long legs, so he paws frantically at his visor and manages to get about a square inch clear. Why not. He fires up at the monster's crotch just as he comes flying out the other side in a flurry of slime.