If anyone knows what this is, I'd really appreciate it if you could let me know, thanks~

Helvetica Black Condensed  Suggested by fmontpetit 
28 Days Later  Suggested by JSFoster75 
Helvetica Neue Heavy Condensed  Suggested by fmontpetit 
321 Impact  Suggested by JSFoster75 

seems like different~

Try 321 Impact maybe? Similar, but not exact...

Or this one... (These are just some distressed fonts that I use)

thank you all~

I'm sorry... it's Helvetica Black Condensed. The grunge effect was done after.