MURI is a pretty fun little game. It's short, simple, and to the point. 2D platforming and shooting. This game replicates old DOS games. I never really played anything on DOS when I was younger, but I've played NES games and retroactively played a few select DOS titles. So as long as you're into retro style games, you'll probably enjoy this.
This game controls pretty well. You only have a few functions, but it's pretty easy and smooth... and I even played on the choppy authentic settings. You jump, duck, and shoot your way through the levels collecting items for points. The game is even nice enough to tell you once you've got all the items in an area, so you'll know for sure if you found all the secret spots or not. Also, it's worh mentioning that your jump is actually responsive to how long you hold the jump button and the rate of ascent and descent is the same. It might not sound like much, but it makes the game very easy to control compared to some stiffer titles of the past. Also, you can get a small variet of cool weapons, each one stronger than the last. There are four episodes and five levels per episode, making the game 20 levels long. It took me about two hours to beat the whole thing 100% the first time I played.
The retro style is done very well in this game. Where some games blend different retro references for nostalgia, MURI really sticks to a fully classic experience. Gameplay, music, sounds, visuals... the works. It's all done in a way that makes you believe it really could be an old DOS game. I love it. The classic feel AND mentality are in tact.
As much as I enjoyed the game, there are a few issues, as with every game. One of them is that... well... it's short. The content that's there is good so I can't complain too much, but a lot of people will be offput by the brevity. The next two things I'm lumping together and you'll see why. No saving and no switching weapons. Both of these things would be very easy to put in. The thing is... they are a choice. Obviouly a game that came out in 2013 COULD have a button for saving and a button to change weapons, but it doesn't. These choices were made to give meaning to the extra lives and weapons you find. Sure, saving after every level would be convenient, but it would defeat the purpose of getting extra lives by reloading every level if you mess up. Plus, the episodes are pretty short, only took me roughly 30 minutes each and it was my first time playing... got 100% score on them all... you'll have plenty of time to beat an episode and each episode starts you with nothing anyway so it's the same as having a save between episodes really. Switching weapons would make you stock up on ammo to beat tough bosses and enemies rather than conserve your ammo and take careful shots with the guns you acquire. These choices are not only for a retro feel, but they also make sense for the game's difficulty. They're design choices... so I can't be too upset about them.
Overall, it's a pretty fun little game akin to the first two Duke Nukem games. If you like retro style games of the 2D platformer shooter genre, check it out. Is it worth the $6 asking price? $4 isn't too bad. It could be a little cheaper, and you can always wait for a sale, but if you're up for trying out the difficulties and replaying it a few times after you've bought it rather than making it just a one time deal, then it's a fair price. I got it on sale for 40 cents so it was well worth it for me. Maybe wait for it to go on sale if you're skeptical, but just don't forget about it. It's a decent little title without all the frills of achievements to intimidate you along the way. I like it.