.. Dealing with the mole hole

Maybe some other bot could do.

Like, the cleaning bot from the lighthouse.

You would need a remote control for it.

Do you have some item with you that could give some power to the bot?

The Ultra Glove of Power, of course. Use it on the cleaning bot.

You can now use the cleaning bot on the mole hole again.

The bot can't handle the water. You would need to waterproof it.

You have the Liquidproof Protector Spray in your inventory. Use it on the cleaning bot.

You can now move the bot all the way back and pick up the electronic component.