You could open the c3 examples and just manually replicate it in c2 events since it will be similar. Or at the very least it would give you ideas.
Roughly it seems to mostly be a matter of creating a bunch of physics objects with a force toward the player or some variation of that.
I tried to replicate some C3 examples, dude, but C3 have some news features.
For example, the C2's Timer behavior is incomplete compared to C3 version. :(