Junk Scren 4 and 5 - The Hundo Split

This is the checkpoint screen

Screen 4

Still with Thunder strike on, shoot slide and go right. Hop up to the ledge and continue going right as fast as you can (Don't slide into the lava). The initial thunderbold should strike a bug on the ground across the lava pits.

Jump the first lava pit, shoot slide a bug and jump to the next ledge.

100% uses Freeze cracker here to freeze the "lava-fall" and walk behind it. The Rush Super Adapter Plate is below. I believe the hundo strat is to collect it and take an intentional death to respawn on this screen, then proceed on the top path for Rush Jet.

Jump up the ladder and slide right. SLIDE OVER THE LAVA GAP HOLDING RIGHT - you'll make it and it's faster. Then hop onto the bug-house and slide off holding right to the next screen.

Screen 5

Slide to the bug house, jump on it for the extra height, then  jump up the ladder.