Very simple and little game. You try to get the best highscore but sometimes I felt that randomness of generating spikes creates impossible or very difficult jumps. I would change how the spikes are spawned or add more obstacles for example blocks or various types of spikes like in an Undertale. You know, you have to avoid, move through or jump through the spikes to move past them. Another thing is how you programmed sounds. You should play the jump sound (Or nailgun shooting sound XD) to jumping and not to pressing spacebar. It creates unnecessary chaos and can be distracting. But I liked pressing spacebar to the rhythm of the music I listened to in the background. But the leaderboard is a nice addition. I like that.