Fusefly Out-of-Bounds

For some reason, the Fusefly enemies clip into walls when knocked into them.

To trigger the glitch:

1. Get a Fusefly to be positioned next to a wall.

2. Deal a non-lethal blow to the Fusefly in the direction of said wall - it should clip out-of-bounds.

Expected Result: The Fusefly hits the wall and stops moving backward like usual.

Actual Result: The Fusefly goes out-of-bounds.