Ok so, sorry for the delay.
Basically, from my testings, all the games at least launch (princess and thief, iron giant, alistair and velma 5.5) the loading times are.... odd, I agree.
Alistair and the iron giant however, broke in the middle of the game, alistair on the first scene with the cat in part 1 and iron giant with the dexter scene. But to be fair, even the games that are working broke at the end screen where the replays should appear. After finishing the game they crash too.
But hey, at least we can play! That's progress in my mind. Great work Mettagold and Cloud64. I'll take a look at that mediafire collection of games later and share my findings aswell.