This version is one of the excellent mods created by SOPHIA in 2014. In this mod, the use of the select button was removed, so you can't use pause to hit bosses. Also, when it comes to consuming items, it was changed to have no animation delay, so eating items won't make you pause. However, it seems the mechanic where invincibility after getting hit doesn't prevent instant-death traps wasn’t changed, so for traps like spikes, you can’t use invincibility to pass through them. Therefore, in some wall-passable areas, instant-death traps block you, so you can't get through. Additionally, because some terrain was modified and boss positions were switched—for example, in the final stage boss rush—you can't wall-pass to skip some bosses and quickly teleport to Dr. Wily. In normal stages, the choices are similar to the first original game: you first grab the M-gun and use its bug to quickly get through some areas. This is all very basic speedrun thinking. Although the select button is gone and you can't pause to instantly kill bosses, you can use the menu button to achieve the same effect as time-pausing. In the end, it’s reflected in quickly killing the Mudman at Wily’s Castle to avoid a second recombination.
Challenger: A MM1 hack with the select button function disabled? Why not?
Even without this very known "mechanic", Mega Man 1 can be still broken in many ways, and this hack shows it after all, and different boss order due to their weakness being different sounds more interesting as well.
Good job with this game! Accepting for publication.