Oh yeah!
I humbly suggest, based on the above WIP, consideration of the usage of the European ROM for a "glitched" version of Blaster Master. BM Europe has 3 Jason-only glitches of devastating significance:
1. Pause-unpause resets vertical velocity -- Jason can fall forever without taking damage (noted by Walker Boh in another thread waaaaaaay back in 2004).
2. Experience from Legacy of the Wizard led me to try this -- after a pause-unpause, there is 1 frame on which Jason can jump out of midair! This removes any sort of vertical hurdle to Jason-only travel and -- most importantly -- allows Jason to air jump past the World 3 obstacle leading to World 8, which would normally require the tank with Wall1/2!!
3. The insane vertical zipping (IVZ) noted on a YouTube post by Spooky is easily replicated in the Europe version; it occurs when Jason uses the door glitch to get stuck in walls. Once zipping, various maneuvers can be used to, within limits, direct where Jason ends up.
The above WIP is totally unoptimized but here's a quick summary:
1. Door glitch in 1st corridor of World 1 followed by IVZ -- skips the wall guardian and gets directly to World 2 door.
2. Uses a continue to get the tank back. Beats world 2 normally. Much IVZ testing succeeded in getting to World 7, but not to the tiny entrance to World 3. It might be possible, but I wanted to post this WIP rather than spend 30 hours testing. Beating crabulous gives the Crusher Beam needed to destroy blocks (may end up being necessary for World 8 also, since the final screen in World 8 has similar blocks surrounding the boss door).
3. Uses a continue out of sheer laziness to get back to the start of World 2, travels to World 3 normally, then uses air-jump to get to World 8 as Jason.
4. Uses a continue to get tank back in World 8.
5. Home free!!!
I think an optimized version of the above would result in about an 8-9 minute movie beating the game and would be entertaining enough to justify the ROM switch according to the site rules. Such a run should NOT obsolete the current run, though, or IMO compete against an improvement using only the door glitch to skip World 4.