I quite like it. I think it's got something good at its core and it just needs some polish to make it shine. I like that there's a risk/reward element of speeding up the crystals to go faster but then you have a greater chance of getting hit. Absolute requirement though would be adding a counter so you can see how many you need to dodge left as I swear I dodged over fifty but nothing happened so I'm guessing I keep getting hit by one every now and then and it's increasing the counter. Some music and sound effects would be cool too. I think it's a good start of a game!