'''Basic Trope''': Two love interests meet by physically colliding into each other.
* '''Straight''': Alice and Bob meet by crashing into each other while both are running to school, and later fall in love.
* '''Exaggerated''':
** Alice and Bob crash into each other with enough force to put both of them in the hospital. Both instantly fall in love with each other.
** Alice crashes into Bob with a ''parachute.''
* '''Downplayed''':
** Bob and Charlie meet by crashing into each other, and later become best friends.
** Alice collides with something Bob is sitting on but not Bob himself yet still knocking him over.
** Alice and Bob meet when they ''almost'' run into each other, but stop just before the collision.
** Bump-Into Hello
* '''Justified''':
** Alice and Bob are involved in some activity (such as skiing) in which crashing into other people is fairly common.
** The "crash" is actually Bob [[DivingSave pushing Alice out of the way of an incoming truck]], and [[RescueRomance she falls in love out of gratitude for him saving her]].
* '''Inverted''':
** Alice and Bob, despite the foreshadowing, step out of each other's way at the last second and go on about their separate lives and plot threads without so much as ever being in the same place again.
** The crash is Alice and Bob's ''last'' meeting.
** Alice and Bob meet in a normal manner, but crash into each other when they leave.
** Alice and Bob say "Hello" first, ''then'' crash into each other immediately after a la [[Anime/HugttoPrettyCure Hana and Nozomi]].
* '''Subverted''':
** It looks like Alice will crash into Bob, but Bob dodges.
** Bob and Alice crash into each other, and, due to the horrible first impression, each thinks the other is a careless jerk, and, instead of love interests, become enemies.
** Bob and Alice crash into each other, but then never see each other again.
** Bob and Alice crash into each other, Alice apologized adorably and nervously heads off, and... [[PercussivePickpocket hey, where did Bob's wallet go]]?
* '''Double Subverted''':
** Bob, thinking he was safe, fails to pay attention and crashes into Alice anyways.
** After being enemies, they fall into a SlapSlapKiss routine.
** Bob and Alice meet each other later and fall in love.
* '''Parodied''':
** Bob is a superpowered LoveInterest magnet which draws everyone (girls and [[EvenTheGuysWantHim guys]]) into colliding with him, and builds his UnwantedHarem this way.
** The Lonely Hearts Club meetings consist of lines of guys and girls charging at each other wearing football helmets. While their [[Music/TheBeatles band]] plays.
** Bob somehow survives a ColonyDrop containing Alice
** Bob and Alice met by crashing into each-other on the way to school... and [[DeconstructiveParody waking up in the hospital ward together due to mutual concussion.]]
* '''Zig Zagged''': Charlie and Carol are walking down the street together when Alice and Bob each crash into one of them.
* '''Averted''': Alice and Bob meet in a manner that does not involve collisions.
* '''Enforced''': "We need to have Alice and Bob meet each other somehow... let's have them run into each other literally".
* '''Lampshaded''': "Did a cute girl really just run into me? I thought that only happens in fiction!"
* '''Invoked''':
** Alice purposely introduces herself to Bob full-force.
** Alternatively, Charlie and Carol think Bob and Alice would be a cute couple, and decide the best way to facilitate them hooking up would be to push one into the other.
* '''Exploited''': Bob notices he's about to crash into Alice and goes for a FunbagAirbag.
* '''Defied''': Bob notices a girl about to run into him, and dodges to avoid an unnecessary addition to his UnwantedHarem.
* '''Discussed''': "You really think you'll meet that special someone by waiting for a girl to crash into you?"
* '''Conversed''': "Ah, there's Alice, LateForSchool, and Bob, not paying attention. Collision in 3, 2, 1..."
* '''Deconstructed''':
** The CrashIntoHello meeting causes injuries to Alice that she resents Bob for, and for which Bob feels guilty about and responsible for.
** The MeetCute is about all Bob and Alice have in common, and after a brief relationship they both go their separate ways, becoming AmicableExes. Relationships require more than a cute meetup for stability.
* '''Reconstructed''':
** Alice and Bob work out their resentments and fall in love in the process.
** Alice, by coincidence, also crashes into her next love-interest, but they have far more in common and it's implied they would have hit it off regardless.
* '''Played For Laughs''': Alice just so happens to be CarryingACake when Bob crashes into her, causing a big cake mess and cherries on their heads ([[DontExplainTheJoke get it, cherry on top?]]).
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Look out! You're gonna collide against {{Crash Into Hel|lo}}-*BLAM*! ...Too late.
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%% Optional items, added after Conversed, at your discretion:
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%%* '''Implied''': ???
%%* '''Plotted A Good Waste''': ???
%%* '''Played For Drama''': ???
%%* '''Played For Horror''': ???