What is happening right now?

A Bomb object is not a Player object; so, the Bomb class should not extend the Player class. Likewise with the BombExplode class. I have often used 1-D String arrays to build worlds with, assigning a specific character to each type actor. In fact, it more resembles the layout when you look at the array. That makes it easier to build. The powerupChance field is not the problem. It is the randChance field that is problematic. Its value never changes (is not random once set).

Remove the first word from line 263, "Player".

The Scroller class should never need modification. My tutorial shows how to allow scrollActor roaming before scrolling using specific code in the scroll method in your MyWorrld class. It should be a simple matter to prevent backward scrolling (just by removing one line of code; or, by changing what it does).

No, I mean the entire listing of all lines of codes in both classes (in rocket and bullet classes).