Does anyone else collect these things? I bought a few so that my kids (5 & 10) would leave my Classic systems alone. This week I noticed that Toys R Us was selling them for 19.99 so I picked up a SpongeBob TV Game. The games are pretty good. Were any of these Spongebob games ever released on any other system?

My Collection so far of these is:

Handy Boy 10 in 1
Atari 10 in 1
Power Joy
Power Player
Activision 10 in 1
Intellevision 25 in 1
Video Maxx 25 in 1
Spongebob 5 in 1

I picked most of these up at the local Goodwill for $5-$7

I'm aware of the TV BOY but not ready to invest in it. Does anyone else know of any others?