Castlevania: Dracula X/Stage 1

Secrets

 * Roast: in the area with the blue flames, in one of the steps going up (just before the boss).

Boss: Cerberus
Being the first boss, Cerberus is quite simple, although his sudden entry may jumpscare the player. He only has one attack, which is to jump very far backwards and shoot a flame that travels slowly across the ground. However, Cerberus can easily be locked into a pattern by not moving left or right; if you stand in one spot and hit Cerberus, then jump over his flame attack, he will reappear right in front of Richter, allowing you to hit him two more times. He will do this every time without fail, allowing you to pummel him until he dies.