i need a little help on a really ancient mario game that i can't remember

no less than 9 years ago

it was a REALLY old Mario game, but i don't know the year... i think you started in a cave, i don't remember the second level, i think third was another cave, there was a secret, that if you keep on going right (leap) instead of going into the pipe, there were those blocks that fall down in some time if you stand on them for long, the start shaking and the forth level had 2 pipe-like tunnels that you can walk inside and 2 holes for the piranha plants to shoot at you, if anyone knows the game, or has ANY ideas, please tell me!

the forth level looked something like this: http://i.imgur.com/YfQp9n4.jpg (just made with photoshop)

the plants would fire up, then down, repeatedly, you had to jump and crouch

Please help, if i get the game, hours of biggest nostalgia in the world, thanks!

edit: http://www.auntiepixelante.com/wp-content/uploads/2011/03/fourtwo.png

the graphics were probably that, just that the goombas were probably brown

second edit:

Neros, it was on a pc, the really huge screen, old pc

to everyone else: i think it MIGHT have not been official, since i went through every version that wiki lists, it might have been a flash, but i still must find it, i think it had a time limit for every level, there was no map, but... i do for some reason remember the falling blocks that you have to stand on to fall to be very detail, i would find an example, but i do not know the real name of them

edit:

found the name of the block, it's donut block, it doesn't exist ANYWHERE for some reason! i don't understand this! i have found this in some really really really old files http://i.imgur.com/JwQ9jPy.png

https://lh5.googleusercontent.com/V4Ie9mvh1Va_Zl_C2r9QCIXYXNVp8SBangNxhoQCl_m-GtclT4bRaBsYInngCy15zUN4JCpr5rc=s640-h400-e365

this seems to be the closest, i guess that flash or something game really is unfindable anymore...

http://www.softendo.com/public/gallery/screenshot/428.jpg

this looks like the most familiar so far! well, maybe not the sun rays, but still!