I "long-term borrowed" this from a friend 2 years ago for SNES. I'm not gonna lie - it's a pretty tough game, but it was lots of fun. I'd pay the 8 bucks for it if you haven't everplayed it before.
I got it for GBA, the one with four swords, and it's pretty tough, like DarthGohan said. It's pretty fun. If you wanna link it, you should get the GBA version 'cause you can play four swords.