1: Yes. No matter how many enemies you kill in a level you can't get more than the giant purple gem.
4: You get those from collecting fish. THere are three fish,
,
and
, and each gives 5 of that color crystal.5: I asked something similar to this before (It's the same reason
doesn't give you a crystal. The
doesn't "kill" the enemy, it transforms it into something else. when an enemy is transformed, then, it doesn't count as being killed and so you don't get the crystal.6: Not until you get the shared heart twice. It appears on level 49 in multiplayer mode.
7: No, BUT the fireball appears faster giving you less chance to collect letters.
Hope that helped!
don't kill enemies. And
, stun effects or black bombs (Hope I didn't forget anything); if an enemy is transformed into a
and is very rare.
. Collecting these 12 items permanently gives you a 2nd bomb (like a permanent
. The magic lamps give 3 and 6 bimbs now instead of 2 and 5)
. Collecting all 12 of these enables you to kick bombs vertically. Have fun!

