Right before the Hospital Corridor levels is a level called "Reptar Road Trip" and somehow in all of you runs you are completely skipping over it??

Im playing on the physical cartridge and im wondering if maybe the emulator is missing levels or?

Yeah, I had been wondering about that too for quite some time. I had the physical game when I was younger and I did distinctly remember a level that didn't seem to be there when I was playing on emulator. I recently reacquired the physical version because I'm planning to submit to GDQ and they don't allow emulation, and sure enough, there it was. I've re-split the categories; IIRC there was a level that was only in one of the GB and GBC versions so I'm assuming it's that one.

There's actually a second difference that I found between the versions. The item requirement for Chuckie's segment of the Hospital level is only 16 when I'm playing on hardware, compared to 18 on the emulator.

@Cyberchao_X Hey thanks dude, its so odd that the emulator is different, especially missing a whole level. I'll have to record a run sometime now that i know, cheers (also i know you replied two years ago lol, i just got a capture card for my GC gameboy player so trying to record now)