The phrase "explosion effects" refers to the outcomes or consequences that happen when there is an explosion. It can include things like destruction, loud noise, injuries, or damage caused by the explosion. Full definition
The only time this isn't really true is when you win with a big strike and the giant explosion effect can overwhelm you by filling the screen. (dagersystem.com)
On the small maps, there's so much smoke and other explosion effects blurring your vision you can't see who you're shooting at half the time. (metacritic.com)
Awesome explosion effects threaten to break the display while lasers litter the screen, emitting huge sparks when connecting with an enemy, draping the dark background in a nonstop color shower. (xona.com)