Koloss Interactive is an one-man indie game company. I am currently developing Lumberwhack -a casual side-scrolling defense game for iPhone, iPad and Android.
Similarities in the UI, sure, or what I would call inspiration. But that's something else than a "completely rip off a game style" as the OP wrote.
Is OP's own game "Hopping Penguin" then a total rip off of Super Mario? Or any of the other hundred similar Pengiun games with cute cartoon graphic that Google returns?
I would say no, and I wish them best of luck, why? Because most all games, movies or any art has similarities or is inspired by something they personally like.
The reason it's noticed in this case is because the inspiration source itself is perhaps quite unique and uncommon. But if something looks similar to thousand other games, no one would comment.
Lumberwhack is a one-man project started 2011, all art and devlopment done myself. What do you accuse being ripped off exactly, and from what? Or are you just trolling?