JelZe gets 5/10. Anyway, it's time to end, unfortunately. I will strike back with a bit of new questions soon. =)

1. What's relation between some of Marbelara's and Sluggion's enemies?
Brothership.
2. What effect have warps on invincibility?
They disable it.
3. How many levels are in HH94?
Seven. Three normal, three bonus, AND a secret level in level 1.
4. What JJ1 guns were remade in JJ2?
All of them, except TNT's radius is way smaller indeed. For those wondering why I didn't say that Toaster's effect is changed, play JJ2 OEM.
5. How JJ1 beta's HUD varies from finished JJ1's?
Beta's is bluish and has diamond-esque pattern. Final JJ1 had all metal.
6. What's Megairbase shaped like?
Rectangular question mark.
7. How many enemy-less levels can an episode have at the most?
Two.
8. Which episode had first 15 second bonus level?
Gene Machine.
9. HH94 has some enemies ripped from other episodes:

Sprite of one enemy remains unchanged. Ski Turtle.

Sprite of another enemy changed, but behavior remains. Stonar Zombie Hands.
Another foe changed its behavior and sprite, yet still manages to look like ripoff from another enemy. Raneforus SUX monkey.

10. What pre-Jazz game was supposed to run on similar to Jazz's engine?
Vertigo.

Here comes the new pile of sux. X(

1. What's the first thing implemented in J1CS after it was finished?
2. Why Jungrock boss gives you "20%"?
3. In episodes A-C, one creature has a name you can find somewhere. What planet it appears on?
4. How many planets have enemies with Sparks' behavior?
5. How Toaster pickup's sprite was shaped like in JJ1 beta?