Bonus+ possible additions

[toadettexmushina]

• Rapid Regenerate
• Cutting Wind (Flap does damage)
• Extra Sentry
• Charge Bow
• Melting Hammer
• Darkness Lifted (make the darkness a pickup like clean water)
• Shield (ori is invincible while using regenerate)
• Soft Grapple (Ultra grapple doesn't do damage if upgraded)
• Underwater weapons (use bow/sword/grenade/etc underwater)
• A pickup which makes a weapon reset your aerial options (like how Sword does)
• A pickup which makes a weapon able to redirect projectiles (like how Sentry/Grenade/Deflector do)
• Bashable Shuriken

[SiriusAshling]

Grenade has a lot of upgrades unique to it that make it completely overpowered and can destroy bosses in seconds.

This is generally considered one of the especially fun parts about Bonus+.

Some, or all, other weapons feel a bit underrepresented in comparison though. Some ideas that specifically intend to create more weapon specific upgrades, encouraging to use those weapons if you find their upgrades:

• Burning Spear / Arrows / Hammer / Sword / Shuriken (maybe not as new upgrades but rather expanding the melting upgrades to also burn enemies)
• Exploding arrows
• (unsure if there's a good name for this) Hammer damages everything on its trail instead of just one thing (e.g. smash all the way through the willow stone's shield)
• Splinter Shuriken (throw multiple at once)
• Sentry Power (increases their fire rate maybe? The Opher upgrade already does this but you could have more of it)
• Sentry Explosion radius + burn upgrade (might have to fix the bug first where sentry explosion only burns things if you have grenade)
• Blaze Power (increases burn damage or if possible tick speed because that sounnds more satisfying oriLol)