Hey! This was a pretty fun game! Ended up playing it for about 10 minutes. I've got a few suggestions and bugs for you to fix.
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1. Staying in the very top right and bottom right corners bypasses all gameplay. No bombs will spawn in front of the player.
2. Adding more controls (Arrow Keys)
3. More visible controls/tutorial at the start. I was very confused on what to do and still am.
4. Making the nukes movement more predictable. Instead of stopping then starting, make it have a very short start delay then an exponential movement vertically.
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I really like this concept, and hope you'll make those fixes and make a full-version of this game!