Ready the Engines 2.0!

Since Ready the Engines 1.0, I've updated several elements of the gameplay as well as the visual appearance of the game. 

Gameplay:

Transitions between rooms now function properly.
Machine Munchers are now properly counted upon pickup.
The battery is now required to turn on the power in the second room.
The player is now required to pick up all four Machine Munchers to be able to finish the game.

Visual

Conversation bubbles now appear over NPCs' heads if they have important information.
New titles have been added around frog NPC in the cockpit.
A new NPC sprite has been added in the second room.
A new animation has been added to Machine Munchers.