First Demo Delays

Short of it, I got Fusion 2.5+ (Good) and now frames crash when going to the next one other than the title and credits (Bad).

Yeah, there's no way I can put the game out like this, I can't even playtest it. I'm not downgrading yet, it's likely something with my awful PC, since it only occurs after getting somewhat near the goal marker (you can even just brush it and move away and it crashes a second later!) so I'll fix this, if possible, then move onto finishing Easy EX 5 like should be happening.