what would be the coolest weapon in a manga or games that were made in japan?

mine is...

1 - gunblade (squall from ff8)
2 - dragonslayer (gutts from berserk)

4 - death note (light from death note)
5 - exploisive tags (naruto)
6 - javelin (evangelion) the one that was penetrated on adam
7 - impact shells (one piece)
8 - angel arms (vash from trigun)
9 - long sword (sephiroth from ff7)
10 - keyblade (sora from kingdom hearts)
11 - z blade saber (zero from megaman)
12 - spirit summoning keys (lucy from fairy tale)
13 - armpit and nose hair (bobobobobobobo)
14 - materia (ff7)
15 - hand cannon (gutts from berserk)

17 - zabimaru (renji from bleach)
18 - wabisuke (kira from bleach)
19 - paper fan (chidori from full metal panic)
20 - energy sword (gauri from slayers)

death note
geass- counts as weapon...
hyorimaru-ice sword-bleach
sanbonzakura-petal sword?-bleach


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The evidence is always there, you just cant see it

I'll Pick:

1. Weapon that Summoned from thin air that can serve as Shield and Weapon (Noctis Lucis Caellum / FF Versus XIII)
2. Unlimited Blade Works (Servant Archer / FATE stay Night)
3. Guyver Unit (GUYVER)
4. New Buster Sword (Cloud / FF VII Advent Children)
5. Zankantou (Daizengar / Super Robot Taisen)
6. Chaos Handgun ( Chaos/Vincent Valentine / FF VII Dirge Of Cerberus)
7. Magic (Mahou Sensei Negima)
8. Magical Device (Mahou Shoujo Lyrical Nanoha)
9. All time Most Destructive Kamehame-ha!!! (Son Goku / Dragonball)
10. Cho Giga Drill (Tengen Toppa Guren Lagann / Tengen Toppa Gurren Lagann)

well that's the top ten, as for 11 and below..
11. Goldion Crusher (Genesic GaoGaigar / GaoGaigar Final)
12. A.R.M.S (Wild ARMs Series)
13. Mobile Suit (Mobile Suit Gundam Series)

and so on...