i forgot that the chainsaw and shotgun exist from early builds of pre ETB (and it not included in this recreation)
Viewing post in PT Pre Alpha Experience (old fangame) comments
ok but you forgot about the superjump and the old mach 3 animation and boost-it state when ptg showed level 4 horror there was the old mach 3 animation and boost-it state plus pillar john before he was called pillar john and you had to feed him and also there was a time limit that was normally 3 mins