Cross-posting here for knowledge sharing. https://forum.speeddemosarchive.com/post/solar_jetman_nes_7.html

In short, I managed to warp from planet 1 to planet 8 by spawning a second warp. It was done on console with a powerpak. I've only been able to do it once and I don't know what caused it, even though I'm guessing a spawning enemy somehow got the warp value written to the RAM-address determining the enemy type. Considering the mechanics behind the eye despawn of the final boss, lag/overflow could also be involved. I've also posted in the tasvideos topic to see if it sparks some interest in understanding what happened.

Hey Ktwo !

I have known about this too, somebody who was participating in the previous big 20 (Sqeurc) also found out about this warp to planet 8. He also only made it happen once, and is also not quite sure how he managed to pull it off so I am sure there is a set rule for it to make it spawn, but I am not sure how to do it either.

Anyways, let me know what you find out so we can maybe implement this new strat in an any% run.

I've gotten the warp to 8 at least once more (probably twice) with my Powerpak. Good to hear that it has also been produced elsewhere.

I'm now focusing on producing it on emulator. My first attempts were to come up with theories (e.g. what happens if a random enemy spawns in the same location as the original warp). They have not resulted in anything of use though. While this has been far from exhaustive, I don't think that's the most efficient way forward for me. I'm now going to focus on recording attempts on emu and hope that I will randomly get it. Having an emulator movie to analyze would open up for better possibilities to understand the mechanics.

I'll let you know if I find anything of use. Likewise, if you find or hear credible accounts of other game-breaking tricks or glitches, I hope you will consider publishing them.