Ok first : You build actual large DIY mechs... That is insane and awesome ! :o
I really dig the overall very PSX presentation style here, complete with highly compressed FMV intro XD
Gameplay wise i like how simple the game is where you just punch or block and that you have free range of movement not just left/right to play a bit with the depth of the arena. My only gripe on this regard is that i didn't fully understood how the heavy punch worked, but still i managed to get around without it :p
It was real fun to play, good job, for both this entry, and also the utter insanity that is that you built these bots in real life too :o