Admittedly, this game is not going to set the world on fire but, this might satisfy you if you're bored one afternoon with nothing to do. The game is simple by design but that doesn't hurt the experience much, if at all.
The downsides I could point out are that the environmental design can lead to some confusion late in the game as you try and remember where that one thing was you needed to cross to. The first three guns feel a bit hit or miss in terms of enjoyment but your fourth and fifth weapon do make for fun. Controlling the game is also a bit wonky but muscle memory after a few minutes should resolve that.
The last con I'd say is the replay value is hurt by the only player choice coming at the end of the game which may lead to some choosing not to return in order to not go back through everything.
The rest of the game is a good positive in my book. The graphics are fun and reminiscent of times gone by. Admittedly, the story is simple but it serves its purpose and I think pushes the player to continually progress in search of more details. I didn't pay too close attention to the audio design, music or otherwise, and simply put on my own music and vibed to that as I played. The game wasn't made harder and allowed me really to settle into a comfort zone with the game.
Lastly, is the game worth it's price? I saw one particular review claiming the price is too high for what's here. Citing length and overall substance of the game as the reasons behind that statement. Honestly, I'd say it is worth the price. It's not a diamond in the rough with oodles and poodles and noodles and more content behind it, but rather a solid piece of work from a developer that takes you for a decent and enjoyable time. As I stated above, if you need something to do and looking for some way that isn't going to waste your time, I'd pick up "And All Would Cry Beware".