What are the lyrics to Dexter's Lab theme?

Sorry, I only know the opening sequence:

Enter at your peril,
Past the vaulted door
Impossible things will happen
That the World's never seen before.
In Dexter's Laboratory
Lives the smartest boy you've ever seen
But Dee Dee blows his experiments
To Smithereens!
There's Gloom and Doom
When Things go Boom
In Dexter's Lab

This is me singing the Dexter's Lab end theme (both parts). This was the first and only take...

https://youtu.be/pZmobxX1NVg