It took me a while to figure out I had to use the mouse to interact with stuff in the game world, even though the intro game was clear and I had to use the mouse there. This is partially because they feel disconnected in style and gameplay. I think a way to solve this could be a custom cursor during the intro minigame that persists when it's finished, making more clear to the player that the cursor is intentionally still left on screen and meant to be used. This could be combined with a highlight when hovering over interactable objects. The only way to tell that the bomb is interactive is the difference in pixel size from the rest of the art, which is generally not very pretty.