Right, so I did the Earth map:
Places where you can do stuff:
Kame House: Train for Kamehameha.
Baba's Temple: Train, maybe if you get one day (or 5 turns) extra for one of your players if they're dead :p would be fun, but maybe a bit too much.
Karin Tower: Training.
Kami's Palace: Better training. The red spaces mean you need the Nyoibo/Power Pole item to get there.
Room of Spirit & Time: Even better training. The room of Spirit & Time can be locked off for good if Kami's Palace is destroyed.
Mountains: Train for Mafuba.
West City: Maybe training for one of Vegeta's attacks?
I can't find what other places had techniques that need a place, but if anyone can help me, these are the attacks I still need to put somewhere:
Destructo Disc (or the Japanese name)
Dodonpa
Ki Ko Ho
Solar Flare
Big Bang Attack
Final Flash
(There's also a Namek, Space and Afterlife map coming (space and afterlife might become 1) But in any case mostly normal attacks with no extra effect are just... well names pretty much with some varying stats, but nothing extremely interesting. Solar Flare, Mafuba, Body Change, Instant Transmission, Instantaneous Movement and Fusion Dance are pretty much the only interesting attacks, the rest is just beam or whatever, though you need an attack to destroy a planet or anything else.