Check the "CoCo ports" directory for the CoCo version of this game

PENGUINO_ORIGINAL.C10 - Tandy MC-10 version
PENGUIN2.CAS - Dragon version


PENGUINO_Fast.C10 - Fast Tandy MC-10 version, outside compo
PENGUINO_Special.C10 - Special Tandy MC-10 version, outside compo