I got to the Nuclear Throne in a practice run with a pretty decent build (Steroids, 2x crossbow) and recorded the result for you.
Nuclear Throne was a result of the Humble Bundle Mojam 2, a game jam organized by Mojang and the Humble Bundle where games were made in 78 hours and the proceeds went to charities.
The game is made by Vlambeer and was originally called Wasteland Kings, though they changed the name to avoid confusion with 'Wasteland 2' later on.
Nuclear Throne has been in Early Access since October 2013 and has had many updates since then (new playable characters, new weapons, new bosses, new levels, daily run etc.).
I'm very careful with Early Access games and Nuclear Throne is an exception where there is more than enough 'game' to warrant a purchase at this point.
Nuclear Throne website: http://nuclearthrone.com/
Nuclear Throne on Humble Store: https://www.humblebundle.com/store/p/nuclearthrone_storefront
Nuclear Throne on Steam: http://store.steampowered.com/app/242680/
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