I'm surprised i could run this in the pcsx2, had no technical issues. Well done!
Combat is simple but feels good to connect those punches with the mecha enemies, i just noticed that the attrack animation sometimes gets stuck and you can't move until you press the punch button again to cancel the animation. If that's intended there should be an indicator to let you know you need to cancel that action.
I'm not sure but i think i collected all the cubes? I backtracked and came back to the pit area to look for something i missed but never found something else so i guess that was it.
Overall, it really gives the nostalgia of early ps2 games and can't wait to see what you guys do with the engine.