Topic: Castlevania HD Collection: unlikely, but stranger things have happened.

[thernz]

Easter eggs means secrets.

[PFG9000]

My English is BAD.

Bowling: House of Sacred Remains, Peeping Eye, Skeleton Bowling. 6skeletons-3skeletons-4skeletons.
Bonus: Ramen

Guillotine chicken game: Dark Palace of Waterfalls guillotine room, Konami command (U,U,D,D,L,R,L,R,X,O).
No bonus.

Astral Knife control: If the O button is pushed immediately after exercising Astral Knife, a motion of a knife will change.

Statue: House of Sacred Remains statue room, If a statue is rotated 50 times (Not "50 hits"), a statue will jump.
No bonus.

Combo training: Kill Forgotten One, Practice of the combo can be performed with the Forgotten One's dead hand. (Sub Weapons are invalid)
Bonus: 15hits=Big Meat, 20hits=Zircon, 40hits=Turquoise, 60hits=Opal, 80hits=Sapphire, 99hits=Ruby.

Thanks so much for translating that!  I need to play LoI again to see if any of these are in the USA version.  I know for sure that the bowling is, and I think the Guillotine Chicken game might be too.

[Mystic Myotis]

Bowling: House of Sacred Remains, Peeping Eye, Skeleton Bowling. 6skeletons-3skeletons-4skeletons.
Bonus: Ramen

Statue: House of Sacred Remains statue room, If a statue is rotated 50 times (Not "50 hits"), a statue will jump.
No bonus.

I can confirm that these two are in LoI's English version.  The others I was unaware of.

Note: If you want the ramen, try to get it with the weakest whip and the weak whip attack and without using anything that boosts your damage, otherwise you run the risk of killing the Peeping Eye before you can finish the mini-game. If you mess up (hitting one of the skeletons with your whip directly or killing the Peeping Eye) you can leave the room and re-enter to try again.