Here is a concise summary of the provided text:
**Title:** 5 Accidental Errors that Changed Famous Games
**Summary:**
A video narrator shares five instances where unintentional errors or glitches in game development led to iconic features or changes in popular games:
1. **Space Invaders (1978)**: A programming flaw caused the game to speed up as aliens were eliminated, increasing difficulty.
2. **Street Fighter 2**: A discovered glitch allowed for combo moves, which were intentionally left in the game.
3. **Tomb Raider**: Lara Croft's oversized breasts were a design error, but they became a defining characteristic.
4. **Grand Theft Auto (GTA)**: A flaw made police cars overly aggressive, transforming the game's focus from mission-based to chaotic survival.
5. **Contra**: A programmer's cheat code (Up, Up, Down, Down, Left, Right, Left, Right, B, A) was accidentally left in the game and became a legendary Easter egg.
**Honorable Mention:** Super Smash Bros. was initially a traditional fighting game, but the addition of Nintendo characters and a percentage mechanic transformed it into the beloved franchise it is today.
Here are the extracted key facts without opinions, each with a number and in short sentences:
1. **Devil May Cry** was initially supposed to be **Resident Evil 4** but was transformed into a new franchise.
2. **Space Invaders** (1978) increased in difficulty as aliens were killed due to fewer objects on the screen, reducing processing time.
3. **Tomohiro Nishikado** developed **Space Invaders** in 1978, not in 1940 as mentioned in a joking manner.
4. A flaw in **Street Fighter 2**'s development allowed players to throw two punches in one move, discovered in the bonus phase.
5. The **Street Fighter** series popularized "combos" (combinations of blows causing more damage).
6. **Lara Croft's** large bust in the first game was the result of an accidental increase of about 150% by a designer.
7. The accidental breast size increase became a defining and popular aspect of **Lara Croft's** character.
8. A rumor about making **Lara Croft** naked in the game led to increased sales among adults trying to verify it.
9. **GTA (Grand Theft Auto)** was initially meant to be a game called "**Race'n'Chase**" where you could be a cop or a criminal.
10. A flaw in **GTA's** early development made police cars overly aggressive without reason, changing the gameplay focus.
11. The **Konami Code** (Up, Up, Down, Down, Left, Right, Left, Right, B, A, Start) originated from a programmer's cheat in **Gradius**.
12. The programmer forgot to remove the **Konami Code**, which then made it into the final game version.
13. The **Konami Code** was later included in other games, such as **Tony Hawk 2** (GBA version), as an Easter egg.
14. **Super Smash Bros.** initially started as a project called "**Dragon King: The Fighting Game**".
15. The game was first envisioned without Nintendo's famous characters, using colored dolls instead.
16. A 3D **Mario** model was added for illustration purposes and led to the inclusion of other Nintendo franchise characters.
17. **Super Smash Bros.** became one of Nintendo's most played games, featuring a percentage mechanic from its early concept.