The movie game is also fun, but there really isn't much of a connection to the movie outside of the title, Ivan Ooze, and I think an end of game appearance by the Ninjamegafalconzord (never sure whether to type that as separate words). It plays more like a game based on season two, with Z-putties and monsters from the show. Most levels are set on two separate planes, and you use the L and R buttons to jump between them. Instead of morphing at the level's halfway point, you collect lightning bolts to build up a power meter and morph by pressing X. While morphed, you can use your weapons as long as you can keep the weapons meter filled. It's a bit harder than the first game, and sadly has no zord battles, but it's still enjoyable, and is two-player as well.
And in case you might be curious, here is a breakdown of the other versions.
Game Gear: Not much different from the previous GG title. It's basically the same gameplay wise, but with season 2 monsters. The movie story kicks in about halfway, but doesn't change much.
Genesis: A major step up from the previous game on the system. This one is a Final Fight-style brawler, and it gets a bit hard but is still fun to play. What's interesting is that only about half of the game follows the movie. The other half is told via flashbacks and uses both sets of Red, Black and Yellow rangers-Jason, Zack, in Trini in levels shortly after White Light, and Rocky, Adam and Aisha after The Power Transfer.
Game Boy: Can't say much about this one because I was never able to get very far. The controls seem slightly improved, but you still lose health too quickly, and there's one section in stage 2 that is a real pain and where I die every time. Better than the last GB game, but that isn't really saying much.
There are also two other games for the SNES you might be interested in. Mighty Morphin Power Rangers: The Fighting Edition is a fighting game with eight playable characters (plus Ivan Ooze as a hidden one). On the Ranger side, you have the Zord combos from seasons 2 and 3 plus four of Zedd's minions-including my favorite design-wise, Silverhorns. The only gripe I have is that the story mode restricts you to the Thunder Megazord and Megatigerzord- you can only play as the others in the other modes.
Then there's Power Rangers Zeo: Battle Racers, a Zeo themed racing game with all six Rangers, King Mondo and a Cog as playable characters. I haven't played this one much because I'm not too into racing games, but I do remember that you can use weapons to attack other racers and get ahead.