Grenade Spam has these relationships to other tropes:

parents kids shares a parent with:
Spam Attack
parent child
Spam AttackBlade Spam
''More Dakka
''Rapid Fire Fisticuffs
''Beam Spam
''Rain Of Arrows
''Flechette Storm
''Macross Missile Massacre
''Storm Of Blades
''Death Of A Thousand Cuts
''Magic Missile Storm
You'll need to Get Known if you want to add or modify these relationships.