Visit the locked room at the military base

Start the game for the first time

Save your sister

Visit the island in the park

Leave the house

Save game 10 times

Get caught by the clown 10 times

Enter the code incorrectly 3 times

Repair the fire alarm

Read the note at the entrance to the cemetery

Return to death park

Activate protective towers

Open parent's closet

Complete the game on hard difficulty

Go down to the sewerage

Open the fridge in the house

Buy all upgrades

Visit the gas station

Complete the game with hard puzzles

Go down to the house

Kill 20 monsters

Visit the toilet in the hospital

Open all endings

Complete the game on extreme difficulty

Guess the correct balloon on the first try

Guess the correct balloon on the last try

Kill 50 monsters

Kill 5 monsters

Complete the game on the ghost mode

Inject HZ-3 into your sister

Overcome fire in the city

Go down to the basement

Completely assemble the mosaic in the house

Don't save your sister

Buy all weapons

Visit the scene in the park

Shoot the first balloon

Read the medical history in the hospital

Listen to shots at the neighbors house

Visit the toilet in the house

Dig up the head doctor

Visit sewerage

Move between worlds 20 times

Visit the back part of the house

Visit the crypt in the cemetery