Zandra has a song she sings about this frog:

🎵 Push a block, ring a bell,
🎵 send a frog straight to hell

🎵 Turn the clock round and round,
🎵 put a frog in the ground

🎵 well it's a long, hard, cold day in hell
🎵 but that's especially true for a frog
🎵 and it's a long, hard, cold road ahead
🎵 so watch out if you happen to be a frog

Block Koala, or as I call it, Weft Tank

Warp Tank, or as I call it, Attack Koala

the coolest thing the UFO 50 guys could do in a couple years would be to release a "definitive edition" that includes manuals for all the games. ideally with a version where you can get a physical copy of all fifty manuals bound together