I think the gameplay is somewhat okay given the limitations of only 2 buttons. However, I think the game at its current state is still unfinished. The controls aren't explained and the game is not scaled correctly so I cannot see some of the texts that do explain the controls. There were bugs too where the character doesn't respawn when they die, the jump is too high and sometimes I get stuck "above" for some reason.
Sorry if my criticisms sounded harsh. I hope to not discourage you from making games. However, I think there are aspects that needs to be improved and I think it's important to voice those out. Never stop improving!