From the episode "Monster Detectives" and it is on the DVD "It's Great to Be a Ghost"
I gotta get out of here, I’m getting sick of this place
But there’s more to do, I haven’t solved the case
There are two monsters now, before there was just one
If I walk away, the job just won’t be done
I didn’t get the ball that the Soccer Monster robbed
I have to heed the call and finish up the job
I gotta get that job done, I gotta get that job done!
It might not be easy, it’s certainly not fun! But I gotta get it done!
I know it will be hard to get that ball back
But if anyone can do it, I’ve got the knack
I’ll just walk right in there and stop that soccer match and say:
“Give me back that soccer ball, it wasn’t yours to snatch!”
I gotta get that job done, I gotta get that job done!
It might not be easy, it’s certainly not fun! But I gotta get it done!
I gotta get out of here, I’m getting sick of this place
But there’s more to do, I haven’t solved the case
There are two monsters now, before there was just one
If I walk away, the job just won’t be done
I didn’t get the ball that the Soccer Monster robbed
I have to heed the call and finish up the job
I gotta get that job done, I gotta get that job done!
It might not be easy, it’s certainly not fun! But I gotta get it done!
I know it will be hard to get that ball back
But if anyone can do it, I’ve got the knack
I’ll just walk right in there and stop that soccer match and say:
“Give me back that soccer ball, it wasn’t yours to snatch!”
I gotta get that job done, I gotta get that job done!
It might not be easy, it’s certainly not fun! But I gotta get it done!