So, this game is based on an early 90s kids' movie that no-one remembers: "Adventures in Dino City", which is about a couple of kids who get sucked into the world of a TV show. Though I'm sure I remember the movie just being called "Dinosaurs: The Movie" when I saw it. Strange.
The game itself is a platform game, but going against the trend of licenced kids platform games on the SNES, it's actually not awful.
The game looks and sounds pretty nice, with the backgrounds on the outdoor stages standing out in particular, being very well drawn and colourful.
It plays great, too: the stages are pretty varied, and you can get pretty far into the game, and it'll still be throwing new gimmicks and obstacles at you. Although there are quite a few stages that follow the formula of "ride a moving platform across a long bottomless pit while stuff tries to kill you", but while the later incarnations of these stages get frustrating very quickly, it's a credit to the game that there are at least three types of them (rollercoaster, jetski-type thing, and large mode 7 rotating wheel thing with platforms on it) that all play quite differently to each other.
To fight enemies, you can choose to either jump on their heads, or punch them. Neither are especially great: the punch is very short range, and there are a fair few enemies (especially later on in the game) that like to jump around, and they can do it almost as high as the player character. Despite the combat in stages being poor, the boss fights are actually a lot better, and all very different to each other.
This is a good game, and I'm somewhat surprised it isn't more well known, considering it got a worldwide release. If you're wondering why I reviewed the Japanese version when it got a worldwide release, the reason is that whoever was in charge of localising the game for the west partook in that most hated 90s habit: they messed with the difficulty and made the JP version's hard mode into the western version's normal mode.