1. lots of concrete
   
2. lots of supports
   
3. a shotgun
   
4. possibly some platforms

first you'll need to place a line of concrete until the first and second placed concrete is cracking and then, you place other concrete or supports below to support (make sure you place the first supporting block right under the first concrete block and the second support under the second block and so on). also add supports under under thous supports for more support, and also don't make the supports as long as the top concrete
First half

now, you propobly didn't make the bridge long enough to get to the other side, but now it's time to get there! this part may sound stupid, but it works! here's the stupid part, all you have to do is JUMP!


made it!

you've landed on the edge, and now your on the other Side :-) ! but another way to the other side is that when you jump, fire a shotgun to add some thrust. but now your on the other side! stay there a bit and get some flowers and red energy gems. but, of course, you don't want to stay there forever. so, build another part of the bridge (it's not recommended to connect them with concrete, but with platforms).

it's done!

now you've build the brige! it's one in many ways to build one. there's many of them in the community screenshots, here is some of those briges:

• "devil's Brige" (witch used supports instead of using concrete)
  
• "Daimond Brige" (had daimond shaped supports at the edges)
  
• even one where there was wood instead of concrete!
  and many more...

this was my first Guide, So I hope you liked it!