I decided to look up DOSBox for WebOS to see if there was one, and sure enough there is, but not yet functional on HP Touchpad. Reminded me of the original Lemmings, so I did some searching. The original Lemmings works on my HP Touchpad 32GB via DHTML at the following site (no sound though)

DHTML Lemmings! - by crisp

I searched these forums to make sure I'm not duplicating any posts and noticed there are/were groups working on *REAL* ports, so please give them some support despite the cease & desists.

Caveman Lemmings by Mobile 1UP