Play as Maria (Rondo of Blood)
In Stage 2, while the minotaur is chasing Richter, there is a
candlestick that contains the "key" subweapon. Make sure to get it,
and then proceed down into the sewers after the minotaur is blocked by
the wall. At the very end of the sewer path, there is a locked door.
Use the key subweapon and it will unlock, giving you a cinematic scene
where Maria joins Richter. She is now selectable as a playable
character in the main menu.
Unlock Symphony of the Night
In Stage 2, while the minotaur is chasing Richter, immediately
fall into the first hole in the ground. You will not die, but instead
be taken into the sewers. Play the level out normally and defeat the
boss. Afterwards, you will be taken to Stage 3' (this is different
from the normal Stage 3!).
In Stage 3', whenever the path branches, taken the upper route.
Make sure you obtain the "axe" subweapon sometime during the stage.
Eventually, you will meet a skeletal snake that is attached to a wall.
Nearby is a vine-like cage; use the axe to cut it. It now serves as a
platform for Richter to jump to the upper ledges. Continue along the
upper ledges until you see a breakable tombstone. Inside is the item
that unlocks Symphony of the Night. Return to the main menu to play
Unlock Original Rondo of Blood game
Go to stage 4.
On your way through twards the end of the stage you will find 6
of those skulls that spit fire stacked on top of each other. Just past
them is a platform that moves like an inverted pengelium going left
and right. Just opposite of it is a spiked ball. Get on the platform
and jump over the spiked ball landing on the ground against the wall.
Break the lower part of the wall to find a bomb. Hit the bomb to
ingite it and the wall will come falling down.
Walk forward a bit and you will find 2 spiked platforms that try
to crush you. Get on the right platform and as it's going up jump off
of it and land on the upper level. Stay on top avoiding the axes and
the yellow eye. At the very end of that platform is a candle hit it
and inside will be some classic gaming goodness.
Original game Akoumajou Dracula Peke
The original game "Peke" was introduced in the original Chi No
Rondo as a bonus game if you used the wrong System Card.
This is the third original game that can be unlocked.
First, you need to select NORMAL BOSS RUSH mode.
Beat it two times, you will receive two Sound Discs.
The third time fight until you defeat Shaft and defeat the next boss,
at the end of the fight you should be rewarded with original game "Peke".
Access it from the main screen like the other original games.
I advice to use Maria and her Dragon sub-weapon to fastly defeat
Unlock Boss Rush Normal, Boss Rush Dash, and Full Bosh Rush
To unlock BRN, beat the first boss on every stage (Wyvern,
Werewolf, Minotaur, Dullahan, Death, Shaft, and L. Vampire).
To unlock Dash, beat the secondary boss on each stage (Serpent,
B. Golem, Dogether, Carmilla, Hydra, Shaft, Shaft Ghost).
Beat every boss (including Dracula) to unlock Full boss rush
Unlockable: How to Unlock:
Boss rush normal Beat the primary boss on each stage
Boss rush dash Beat the secondary boss on each stage
Full boss rush Beat every boss (including Dracula).