[Coco] OS-9 Lev1 software running on Lev2 ??

[Charlie]

Does OS-9 Level 1 software run on under the Level 2 os ?

I'd like to run Mickey's Space Adventure from my hard disk. I copied all the
4 disks to a single directory.
When I run the game, it starts but says something about a file missing.
Ultimately it quits with error 237.
Nitros9 tells me that's RAM FULL.

I put the files here if anyone wants to take a look.

http://69.3.33.239:8081/files/mickey-coco.zip

Charlie