Bit.Trip Core suffers from giving too little, too late. For the first two thirds of the game I was certain it was my least favorite of the Bit.Trip Saga that I'd yet to play, only to find the final third of the game (or in other words the third level) vastly improved on everything that came before. Even still, it's hard for me to even begin to recommend it, as by that point my experience was already soured and I was ready for it to be over.
As is the case with every Bit.Trip game, the gameplay of Core differs wildly from past games, placing you in the middle of the screen with the ability to shoot lasers in four directions. Blocks come out from the sides of the screen, and you need to time your shots to hit them as they cross over your line of fire. In theory and keeping with Bit.Trip tradition, these are supposed to line up with the beat of the audio track, but in practice there is very little rhythm at all to the patterns which makes it incredibly difficult to time shots with how short a window you are given. It's not until the last level that these designs finally come together and you can see what Gaijin Games was going for with a fantastic closer that feels really rewarding once you get in sync with the track, which makes it so disappointing that near everything that came before was just rubbish.
For a game you can finish in under and hour, it's hard to recommend Core when only a third of it is worth playing, and even then is likely to annoy those who don't posses a keen sense of rhythm. It's ideas are solid but its execution lacking, and on the whole I found little enjoyment to be had from what eventually showed itself to be an interesting concept. If only it had done so earlier.