Osomatsu-kun Hachamecha Gekijou

Leftover Debug Functionality
The game has some debug functionality left over, but the way to trigger it is not only disabled, but doesn't appear to work right. The best I can come up with is: Before a new screen starts, activate the code 635E:4E71, then turn it off after the level begins.

Afterward, you have nearly free movement (Osomatsu-kun is still bound by level object collision). A and C cycle through Osomatsu-kun's sprites. Hitting Start on controller 2 exits this mode with no obvious way to get back in.