Most fun/challenging song you've played?

[Zrink]

Here is an interesting question -
Was there a song which stuck in your memory as an awesome ride in Beat Hazard?

[Truck]

I find a lot of stuff by Star One, a prog metal group, makes for interesting levels. Here's one track in particular I enjoyed playing through: http://www.youtube.com/watch?v=bjQkllwJsxU

[Burgerpunk 2020]

Not really challenging but fun:
http://www.youtube.com/watch?v=Gbf4zeyAXhw

[9th🐤Sage]

Probably Knightmare Regain and Heartbeat Queen from the "Bunny Must Die" soundtrack. Ye gods, especially if you crank up the difficulty, they're really entertaining. Really, this game has a lot of good ones.

Knightmare Regain
Heartbeat Queen

[Cyril]

equillibrium - mana, 15 minutes of hardcore

[Phaper]

Crimson by Edge of Sanity and Heathen by Wyrd.

Both pretty brutal, but also quite enjoyable.

Hardest song is either (A Shimmering Radiance) Diadem of Twelve Stars by Wolves In The Throne Room, or Light Of Day, Day Of Darkness by Green Carnation.

I'm fairly convinced that both of those songs are impossible at Suicidal/200%.

[Too Old, Too Cold]

http://www.youtube.com/watch?v=Mqsd5Z8-czg

wolves in the throne room songs are hard too, just because of the crazy length to them.

[[HS]Cheetah]

And now for something completely different - Edvard Grieg - In The Hall Of The Mountain King. Yes, classical music. It's fun as hell :)

[ShiroMansei]

One Ok Rock - NO SCARED

[Darnuss06]

http://www.youtube.com/watch?v=xvZk0mDXgMs

[TealSpark]

Exision's Shambhala 2013 Mix.

http://www.youtube.com/watch?v=pFd7MHcYW1o

[TealSpark]

Try to survive that.

[MarcMinusKevin]

Best <3 :)
http://www.youtube.com/watch?v=aBwdpzIBBaw

[Lunchbox Man]

Oh man I'm going to have to try some of these.

[Karyu]

Grendel =) electro dark, good song, good game.

[TiZ #HugLife]

From the Gurren Lagann soundtrack, "Is It Okay Just to Get Fired Up?" and "All You Bastards, Get Fired Up!" Something about firing up and this game... in any case, they're not necessarily hard, but they result in dynamic, exciting levels due to the natures of those particular songs. I imagine a lot of soundtrack music has the same effect.

http://www.youtube.com/watch?v=u81ZI4d63Vc
http://www.youtube.com/watch?v=XfGHJZygvro