The capped energy bar and pure greed of the game ruins what - most of the time - is a fun, stripped down, portable version of Lemmings.

You can probably get three or four levels in before you run out of energy, and it's just plain greedy to deliberately stop people from playing for long periods if they're unwilling to spend money. It'd be better if you were refunded any energy spent if you save all lemmings in a level: this may encourage players to try and play more strategically.

The worst thing is, you can only upgrade the energy bar by subscribing to the VIP service.

It'd be better if they just sold the game for $10, which allows players to play with unlimited energy, while players who choose to play the free version keep the capped energy bar.

While the freemium greed is maddening at times, the fun, simplified gameplay keeps me coming back, even after I've rage-quit and vowed never to come back to it.