Tombi.
Tombi..
A THOUSAND TIMES TOMBI.
That game remains far too ridiculously rare... I was searching for that a full ten years ago, while in school and back when it was having offers of about £30+ on eBay (on average).
And now, ten years on, I'm at university and the average is £50+. Silly for a game whose console isn't even a thing any more, but still I want to play that game (I have the sequel kicking around somewhere, and the demo of the original from the disc which came with the PS1 all that time ago...) but this needs a release. (Hopefully whoever gets hold of the license will use it for good and make said release multiplatform too...)
Similarly, Klonoa. I was lucky to have managed to rent it for a weekend back in the day (my local video place always had an interesting little collection of games on the shelf) but I didn't get all the way through it in that time. Tried to buy it for about three years thereafter and like Tombi could never find it for an anywhere near reasonable price...