Two words, replace one

[Bat]

Tricky maze

 

[Aria]

Tricky obstacle

 

[Bat]

Obstacle course

 

[Aria]

Training course

 

[Bat]

Training crew

 

[Aria]

Training wheels

 

[Bat]

Bike wheels

 

[Aria]

Bike transport

 

[Bat]

Plastic bike

 

[Aria]

Plastic waste

 

[Bat]

Plastic container

 

[Aurora]

Container ship

 

[Bat]

Ship wreck

 

[Aria]

Pirate Ship

 

[Bat]

Pirate party

 

[Aria]

After party

 

[Bat]

Party celebration

 

[Aria]

Celebration chocolate

 

[Aurora]

Chocolate frog

 

[Aria]

Chocolate straws