Hello, and thanks for playing our game! As many devs suggested, we will add a visual indicator as soon as the jam ends 😁So as for being able jumping straight up, it was not used properly in our case. Jump King has fixed position cameras unlike our camera that follows the player. In Jump King, being able to jump straight up gives the player the ability to peak onto the next level safely. We had a moving camera so being able to jump straight up wasn't utilized well in gameplay. Hope I explained it correctly😅
Thanks again!