I enjoy it a lot. It doesn't seem it would be too hard to improve, and it could definitely use a few improvements. Resource regen could be tweaked to take some emphasis off gold so crystals and iron would serve a better purpose. Some card tweaks such as the base repair to full is OP - Spend over 2 whole minutes just getting ready once you start your wave pop the base repair and max that gold at the end. Changing around some of the soul costs would be nice, as a lot of the legendary units I do not even consider using - Anything 30 or over is never used (takes up a spot in hand until I can get the souls, the rare +25 soul card isnt even enough to cast it). As it is the +150 gold card and the +2 gold production are hands down the most looked for cards by me. I don't think it would be too hard for this game to be a lot more popular with just a few touch ups.
There aren't many benefits to going fast. At certain angels trying to tilt the bike doesn't seem to work. Like if the bike is going straight up I haven't found a successful way to recover. I didn't like it.
 "Cardian"){kind=icon}
 "Stick out Bike Challenge"){kind=icon}