This is definitely better than what you'd expect out of a license from a small children's property. The presentation's great, it's responsive, and it's generally fun to interact with. But there are a couple things that kept me from loving it:
1. There's little challenge. That makes sense given the target audience of a Doraemon game, but it does limit its appeal a bit to older gamers. I beat this on my first try, and I rarely died at all. It's not until I got into the 50s that it started to feel like it was keeping me on my toes, and by that point, the game was nearly over.
2. Large sections of levels are reused multiple times. I don't think any level is entirely recycled, but you'd be forgiven for thinking otherwise when you first start some of the later levels off. Were they so strapped for space with all the visuals that they ran out of room for layout data? That seems weird given that similar games on this platform at the time didn't have this problem.
To top that off, Batman came out on the PCE about a year later, and it basically did what Doraemon did, but without those issues. The game is still good, but it feels frustratingly close to being something much better.