I found many things that can be manipulated. The only problem is that it is all done randomly since i have no knowledge in luck manipulation so it costs a lot of rerecords.
Also in the race, you can keep maximum speed by jumping. It seems to be a little like the SMW speed variants but its different in some way. When you turn while running you lose speed and also when you step in mud or grass like most racing games. If anyone is interested, Fred's speed value address for the race is 7E0CD0,1u.
Edit1: I am redoing all of this. I found many things that could be improved. All in all, i think this game will be done around 6 to 10 minutes... Maybe :)
Edit2: Done with first world. It took me 4 minutes so maybe it will be a little longer than i have thought. I think there is 5 worlds in all. Anyway, i changed everything from the start, i changed Barney's direction so that he goes straight to the exit when i obtain the map after the race and i manipulated the guy with the blue hat to not roll his dice. Also, i perfected the race a little but it is quite complicated to keep maximum speed while taking shortcuts in the mud and all but i think it's good.
1st world done :)
Edit3: Damn! I have to redo the race for many reasons. At the end of the second lap, at the line, the third lap does not appear for some stupid reason. Anyway i wanted to redo it to try and keep the highest speed (64) all the way and also try to cut corners more smoothly. I wonder if the same kind of crap happened in Mario Kart... Maybe Comicaflop could be useful for this part of the game :)