This hack of Super Mario Bros. based on the game “Flappy Bird”. This is a full "Nightmare" version of the game.

Updates:
 v 1.02 (21.06.2019)
- 
Demo mode starts without delay.
- In demo mode fixed the movement of the bird.
- If the bird touches the bottom of the screen, it dies immediately.

Updates:
 v 1.01 (03.11.2016)
- changed game time (300 sec).
- fixed bug when touching the tubes.
- fixed pipe palette in menu before starting level.
- changed the location of enemies.
- added a scrolling screen in demo mode.

 v 1.00 (07.09.2015) first release

ROM / ISO Information:

File: Super Mario Bros. (JU) [!].nes
Length: 40976 Bytes (320 Kbit)
CRC32: 3337EC46
MD5: 811B027E AF99C2DE F7B933C5 208636DE
SHA1: EA343F4E 445A9050 D4B4FBAC 2C77D069 3B1D0922

I express my gratitude for the help:
Xerox, Doomguard45, mrrichard999.

Guyver X.B.M. (my e-mail: veroh@yandex.ru)
Website: http://dendy.space