Go to https://www.microsoft.com/en-us/download/details.aspx?id=52685 and download "vc_redist.x86.exe" then install it(VC++ 2017 might also work).

A few notes:
- This trainer only works with official, uncracked versions of the game - 1.0.6 and 1.1.0;
- When swapping characters/stages please don't forget to turn on "Missing Files Fix" to prevent crashes;
- Don't forget to check "Freeze" before editing anything;
- Stage swap can soft-lock your game. If this happens, use the "Menu" button to return to main menu;
- Stage swap often results in soft-locks when going through rooms out of order just too much, e.g. skipping the room with the collapsing ceiling and going for the shotgun;

This trainer allows you to:
- Swap characters;
- Swap outfits;
- Swap story mode;
- Use character-specific weapons by any character;
- Swap stages;
- Make the player invincible;
- Freeze health of the player;
- Walk through walls;
- Skip doors fast;
- Unlock all bonuses;
- Boost your FPS;
- Freeze camera;
- Open doors without keys;
- Save without the ink ribbons;
- Win by pressing a button;
- Freeze the timer;
- Freeze Z(current height);
- Move the player up or down;
- Go to main menu using the trainer's UI;
- Restart current level using the trainer's UI;
- Change the size of the player;
- Change the speed of the player;
- Heal the player;
- Change the size of enemies;
- Change the speed of enemies;
- Heal enemies;
- One hit kill enemies;
- Edit how much time you've been playing;
- Edit how many enemies you've killed;
- Edit how many shots have been fired;
- Edit how many healing items have been used;
- Edit how many times you've saved your game;
- Fire your gun faster;
- Never waste your ammo;
- Edit how much ammo you have;
- Change the special item that is currently equipped;
- Change the equipped gun;
- Change how many defensive items you have;
- Make all guns bigger;
- Never waste your items by using them;
- Edit your inventory items;
- Edit your inventory items ammo;
- Edit items in the item box;
- Edit every single item box(Real Survival);
- Use hotkeys to turn on/off certain options;
- Play a sound if any hotkey has been pressed or speak the name of the option;
- Use it with 1.0.6 or 1.1.0 official steam version of the game;