I've played about an hour of Luftrousers and I can confirm that the game is fantastic. It has that "just one more game" thing where it's really hard to put the controller down. I used a 360 pad, but mostly because I avoid M/KB whenever possible (comfy couch). The game seems like it would be easier to control with the KB arrow keys. Either way, it handles extremely well. One of the game's central mechanics is that you have regenerating health, but it regenerates much faster when you're not firing. You can take a decent amount of hits before you die, but it's still easy to meet your end quickly if you're careless. There is a visual indicator when your health goes down where the screen lightens a bit outside the radius of a circle around your craft, which will get smaller the closer you are to death. It's a very smart alternative to something like a health bar which would have taken your focus away from the action.
Your scores will contribute experience for you to level up, which earns you new weapons, armor, and engines. There are also challenges which earn you skulls (which translate to exp... I think?) that are tied to these parts, so it encourages you to play around with different configurations. The different tracks I've heard in the game seem to be tied to these configurations as well. What I've heard of the soundtrack of the game so far has been excellent.
I only have two complaints about the game so far. The first is a minor annoyance; though I was playing with a controller all the prompts still referred to keyboard buttons. It was wasn't too hard to figure out what mapped to what though. The other problem I had with the game is that it renders in 4:3. So full screen = black bars.
The game comes highly recommended from me if you enjoy high score chasing, quick to learn yet hard to master, bite sized arcade games.
I also finished Arkham Origins yesterday. On one hand, I can see where a lot of reviewers were coming from in this game because I was pretty fatigued with its formula as well. I skipped more of the "side quests" in this game than I did in previous games. Though I didn't come close to completing the previous games either, especially City with all the tedious Riddler stuff. All that being said, I thought this installment was better than its predecessors when considering the complete package. So you can count me on #TeamOrigins.
For me: Origins > City > Asylum.