Hey buddy, sorry for the late response... I just released an update with Checkpoints, Timer toggle and Difficulty levels. Check it out! :D
- Red spikes: I tweaked it to be 1s, the faster the response time the more noticeable it's.. for the slower response times it's still to slow, but I dont think it should be too fast because these are designed for people with slower reflexes haha. Oh thank you for the tip, it really made it more fluid! (at least on the most difficult levels)
- Level design: thanks for the compliment :))). Now the timer can be toggled ON/OFF and if it's on, the amout of time depends on the difficulty (even on the easiest difficulties if you choose to enable it).
- Visual Indicator: well, try it out and see if it's still a problem :)